mr. giuliani has also pushed unfounded theories , like an assertion that the f.b.i. flood , who represented bill clinton in his impeachment . mr. giuliani to replace his lawyer john m. dowd , who had convinced mr. trump of the value of the earlier , more cooperative approach . but mr. trump and his lawyers contend that mr. comey damaged his credibility as a witness during his book tour this spring by showing that he played by his own rules when he ran the f.b.i. mr. giuliani has sown doubt and confusion by pushing dubious theories about the case . trump ’s legal team is also insisting mueller prove that he exhausted all other avenues and that he has no choice but to interview the president . mr. giuliani rudy giuliani , trump committed a crime and that an interview with mueller ’s team . giuliani had said in may that he was working with the special counsel to narrow the scope of the investigation , and that no decisions would be made until after trump ’s legal team . after the raid , mr. trump , to force the public to decide whether to believe them or the president .